Seat-support.



W. S. HARLEY.

SEAT SUPPORT.

APPLIGATION FILED NOV. 2, 1911.

1,024,685. Patented Apr.30,1912.

WILLIAM s. gamer, or MILWAUKEE, WISCONSIN.

SEAT-SUPPORT.

Specification of Letters Patent.

Application filed November 2, 1911. Serial No. 658,263.

To all whom it may concern: I

Be it known that 1, WILLIAM S HARLET, a citizen of the United States,and resident of- Milwaukee, in the county of Milwaukee and State ofVViscons'in, have invented oeri tain new and useful Improvements inSeat- Supports; and I do hereby declare that the following is a full,clear, and exact description thereof. My invention refers to seat postsfor metor vehicles or the like, its object being to provide asimple,economical and effective shackle-connection between a spring-controlledseat-post and pivoted seat-bar. The construction and arrangement is suchthat a bearing sleeve is loosely mounted upon a saddle-bar, thesaddle-bar having one end pivotedto the frame of the vehicle. The sleeveis' lii hinge connection with a head of a spring-controlled seat-post,WlllCll seatpost is adapted to rise and fall incidental totravel andowing to the pivoted union be-,

tween the seat-post and bearing sleeve, the same will automaticallyadjust itself to the various positions assumed by the saddle-bar,

' the bar having a slight end-play in said sleeve.

With the above object in vlewr the'invention consists in certainpeculiaritles of construction and combination of parts as-hereinafterset forth with reference to the accompanying drawings and subsequentlyclaimed.

*In the drawings Figure 1 represents an elevation partly in section'ofaportion of a a motorcycle frame provided with a seatsupport embodyingthe features of my inven-' tion, and Fig. 2, a detailed cross-section ofthe saddle-bar and its connections, the sec-- tion being indicated-byline 2'-2 of Fig. 1.

Referring by characters to the drawin s, 1 represents a horizontaltop-bar of a mo r-- cycle frame, which'bar-is supported by a.

secondfbar 2 arranged parallel therewith, the'sebars-being in brazedconnection with a seat-mast 3. The mouth of the seat-mast has brazed.thereon a gland 4: 'intowhich is fitted a tubular well 5, the samebeing provided with a flanged end that rests upon the outer endof thegland to which it is clamped by 'a threaded ring 6. The tubular well 5constitutes; a receiving chamber in connection with the seat-mast for aspring-con.-' trolled hollow seat-post'7 that is in teIe-' soopic uniontherewlth; The hollowseatpost 7 secured -to its upper end a. bifurcatedhead 8, the same being, apertured for the reception of a pivot-pin 10. pThe plvotpin 10 1sarranged to receive an apertured ear 11 that extendsfrom a bearing-sleeve 12, which bearing-sleeve is provided for slidingengagement with the free end 'of a saddle- Patented Apr. -30, 1912;

bar .13, the said bar being pivoted at its opposite end by means ofbranched arms 14 which carry a stud 14 that engages'an cared bracket 15,which bracket is brazed or'otherwise secured to the frame-bar '1.

The hollow seat-post 7 asshown,has fitted therein a coiled spring 16that is interposed between the seat-post head and an apertured bottom 5'of the well 5,-whereby the seat postis supported under spring-control inopposition to downward force. The head 8 also carries a plunger-rod 8'which extends downwardly through the coiled spring and is guided at its.lower end through its en- -'gagement with the apertured bottom 5' ofthe. well, .the said rod being extended through thebottom for thereception of a recoiled spring 17 that is fitted over the rod and heldin position by a collar 18 secured thereto.

From the foregoing construction it'.wi1l

be readily understood thatwhen the seatpost is reciprocated withinthemast, through vibration incidental to .load uponthe seatbar, the"bearing-sleeve will' oscillate about its hinge connection to compensateforvariation in the angle assumed by said saddle-bar and', owing to thearc described by said saddle-bar in its vibratory movement about itsaxis of oscillation it is apparent thatsaid barw'ill have slightend-play within the bearing-sleeve and thus tendency to cramp theseat-post in its rise and fall will be eliminated. Furthermore the partsbeing compactly assembled as shown, rigidity in all directions isinsured, while at the same time flexibility and yield is permitted'freely in a vertical direction.

I claim; 1; In a vehicle frame having a horizon- "tallydisposed bar, anoblique vseat-mast in unlon therewith, a spring-controlled seatpost intelescopic union with the seat-mast,

and a' saddle-bar having one end pivotally secured to said horizontalframe-bar; the

coinbination'of a bearing-sleeve in sliding engagement with the free endof the saddlebar; a; head carried'by the seabpost, and a pivotconnection between the seat-post head and bearing-sleeve.

2-. Ina vehicle frame having a horizonwhereby said bearing-sleeve iscapable of tallydisposed bat; an oblique seat-mast in oscillation in onedirection incldental to union therewith a Spring-controlled seatmovementof the "free end of the saddle-bar. 15 i post ill-telescopic nnionvwiththe seat-mast, In testimony that I elaim the foregoing I Qand a.. saddle-bar having onexend pivotall'y have hereunto. set my hand at Milwaukeein secured .to said, horizontal frame-bar; the the county of Milwaukeeand State' of Wiscombination of 1a beagng-sleeve in slicable consin inthe presence'of two witnesses. engagement Wit the ree end of the sad1e'-- bar, an apertnred ear extendin from" the WILLIAM HARLEY 1 sleeve,an aperture& head carried by the" Vi'tnesses:

aeat post, and a pivot-pin in engagement GEOLWr YOUNG, with the sleeveear and" hear apertures WALTER AVIDSON.

